nostr:npub1v7t4yx9vxtv3mat0hdsduuym4fvjd5dzmdlh82ssa40phr965h2s2lck6k nostr:npub106dam65ww9ztdqj26xvh08dyuc7lj7nmkrtrujwsmyq2n6g3r33saq3m89 there are tables you can look up to determine what temperature a  metal should be at and for how long, but when I need to anneal something I've forged I just eyeball it at a cherry red or dull orange and then put it directly in the vermiculite. It works for what I do. Although when I anneal stuff I try to do it in batches so they'll keep it hotter for longer.